A farm employee manages planting at an "aquaponics" industrial park in Nanchong, Southwest China's Sichuan Province on November 16, 2023. The fishery farm uses the "aquaponics" model, which is a form of cooperation between plants and fish. The tail water of fish farming is used to cultivate vegetables, while the planting water is purified and used for further fish farming. The model not only saves money but also offers ecological and environmental protection. Photo: VCG